10221165000025 has 24 divisors (see below), whose sum is σ = 14485447050624. Its totient is φ = 7008510432000.

The previous prime is 10221164999999. The next prime is 10221165000029. The reversal of 10221165000025 is 52000056112201.

It is not a de Polignac number, because 10221165000025 - 2³⁹ = 9671409186137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221165000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3106929 + ... + 5485921.

It is an arithmetic number, because the mean of its divisors is an integer number (603560293776).

Almost surely, 2^{10221165000025} is an apocalyptic number.

It is an amenable number.

10221165000025 is a deficient number, since it is larger than the sum of its proper divisors (4264282050599).

10221165000025 is a wasteful number, since it uses less digits than its factorization.

10221165000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403561 (or 2403556 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 10221165000025 in words is "ten trillion, two hundred twenty-one billion, one hundred sixty-five million, twenty-five", and thus it is an aban number.